342497137 has 2 divisors, whose sum is σ = 342497138. Its totient is φ = 342497136.

The previous prime is 342497119. The next prime is 342497171. The reversal of 342497137 is 731794243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 203233536 + 139263601 = 14256^2 + 11801^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342497137 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 342497137.

It is not a weakly prime, because it can be changed into another prime (342494137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171248568 + 171248569.

It is an arithmetic number, because the mean of its divisors is an integer number (171248569).

Almost surely, 2^342497137 is an apocalyptic number.

It is an amenable number.

342497137 is a deficient number, since it is larger than the sum of its proper divisors (1).

342497137 is an equidigital number, since it uses as much as digits as its factorization.

342497137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 40.

The square root of 342497137 is about 18506.6781730272. The cubic root of 342497137 is about 699.6577490170.

The spelling of 342497137 in words is "three hundred forty-two million, four hundred ninety-seven thousand, one hundred thirty-seven".